Author: sitemill

  • Solar Watch — August 11, 2026 | 18:00 UTC

    ☀ Helios Solar Watch · 2026-08-11 16:00 UTC
    QUIET

    Solar activity is currently quiet with the geomagnetic field transitioning to unsettled levels. Despite the lack of significant flare activity, the F10.7 solar radio flux remains at a high 201 sfu, indicating a robust active sun.

    HMI Continuum Intensity

    Visible light · 4 active regions

    SUVI 304 — Extreme UV

    Extreme UV · 304 Å

    Kp Index
    2.7
    5 or above = storm

    Geomagnetic
    G0
    24 h max: G0

    X-Ray
    A/B
    quiet


    ⚠ Proton flux UD summary · 4 more below
    Next 24 h

    Expect a minor uptick in geomagnetic activity reaching Kp 3.67 later this evening, followed by a return to quiet conditions.

    more

    Solar flare probability remains moderate for C-class events, with little threat of significant M or X-class activity in the near term.

    🌌 Aurora

    Aurora visibility is not expected for mid-latitudes; observers in high-latitude regions may see minor activity as the K-index trends toward 3.67, but no significant displays are anticipated.

    👁 Watch for

    Monitor active region AR4503 for any sudden magnetic reconfiguration, which could increase the probability of C-class flare production in the coming 24 hours.

    ▸ Detailed readings

    Radio blackout
     R0
    (24 h max R0)
    Radiation
     S0
    (24 h max S0)
    F10.7
     201.0
    sfu

    Region Location Class Flares C/M/X
    AR4503 S18W27 Bxo/B 0/0/0
    AR4507 N03E44 Bxo/B 0/0/0
    AR4506 N10E27 Axx/A 0/0/0
    AR4508 N07E66 Hsx/A 0/0/0
    NOAA messages
    2026-08-11 11:41  Proton flux UD summary (SUMSUD)
    2026-08-11 10:47  Proton flux UD expected (WARSUD)
    2026-08-09 13:38  Kp 20 possible (WATA20)
    2026-08-08 21:08  Kp 6 (G2) reached (ALTK06)
    2026-08-08 20:35  Kp 6 (G2) expected (WARK06)


    Helios Observer · Data: NOAA SWPC · updated every 12 h